package com.bella.springcloud.controller;/**
 * @program: cloud2022
 * @description:
 * @packagename: com.bella.springcloud.controller
 * @author: Bella白
 * @date: 2022-08-31 18:52
 **/

import com.bella.springcloud.entities.CommonResult;
import com.bella.springcloud.entities.Payment;
import com.bella.springcloud.lb.LoadBanlancer;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import javax.annotation.Resource;
import java.net.URI;
import java.util.List;

/**
 * @author: bella白
 * @Title: OrderController
 * @ProjectName: cloud2022
 * @Description:
 * @date: 2022/8/31 18:52
 */
@RestController
@Slf4j
public class OrderController {
//    public static final String PAYMENT_URL="http://localhost:8081";
    public static final String PAYMENT_URL="http://CLOUD-PAYMENT-SERVICE";
    @Resource
    RestTemplate restTemplate;

    @Resource
    private LoadBanlancer loadBanlancer;

    @Resource
    private DiscoveryClient discoveryClient;
    @GetMapping("zipkin")
    public String paymentZipkin() {
        return restTemplate.getForObject(PAYMENT_URL+"/zipkin",String.class);
    }

    @GetMapping("/consumer/payment/create")
    public CommonResult<Payment> create(Payment payment){
       return restTemplate.postForObject(PAYMENT_URL+"/payment/create",payment,CommonResult.class);
    }
    @GetMapping("/consumer/payment/get/{id}")
    public CommonResult<Payment> getPayment(@PathVariable("id") Long id){
        return restTemplate.getForObject(PAYMENT_URL+"/payment/get/"+id,CommonResult.class);
    }
    @GetMapping("/consumer/payment/getForEntity/{id}")
    public CommonResult<Payment> getPayment2(@PathVariable("id") Long id){
        ResponseEntity<CommonResult> entity=restTemplate.getForEntity(PAYMENT_URL+"/payment/get/"+id,CommonResult.class);
        if(entity.getStatusCode().is2xxSuccessful()){
            return entity.getBody();
        }else{
            return new CommonResult<>(444,"操作失败");
        }

    }
    @GetMapping(value = "/consumer/payment/lb")
    public String getPaymentLB(){
        List<ServiceInstance> instances =  discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE");
        if(instances == null || instances.size() <= 0){
            return null;
        }
        ServiceInstance serviceInstance=loadBanlancer.instance(instances);
        URI uri=serviceInstance.getUri();
        return restTemplate.getForObject(uri+"/payment/lb",String.class);
    }
}
